looper/backends/playback/zsm/x16emu/vera_pcm.h

// Commander X16 Emulator
// Copyright (c) 2020 Frank van den Hoef
// All rights reserved. License: 2-clause BSD

#pragma once

#include <stdint.h>
#include <stdbool.h>

void     pcm_reset(void);
void     pcm_write_ctrl(uint8_t val);
uint8_t  pcm_read_ctrl(void);
void     pcm_write_rate(uint8_t val);
uint8_t  pcm_read_rate(void);
void     pcm_write_fifo(uint8_t val);
void     pcm_render(int16_t *buf, unsigned num_samples);
uint32_t pcm_fifo_avail(void);
bool     pcm_is_fifo_almost_empty(void);
uint32_t pcm_fifo_cnt(void);
uint32_t pcm_sample_size(void);